Sigma SD1 Merrill vs Sony TX20

Its time to look a little more closely at the Sigma SD1 Merrill versus Sony TX20, one being a Advanced DSLR and the other is a Ultracompact by rivals Sigma and Sony. The sensor resolution of the SD1 Merrill (15MP) and the TX20 (16MP) is fairly well matched but the SD1 Merrill (APS-C) and TX20 (1/2.3") have different sensor measurements.

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The SD1 Merrill was launched 2 months later than the TX20 which means that they are both of a similar generation. Both of these cameras feature different body design with the Sigma SD1 Merrill being a Mid-size SLR camera and the Sony TX20 being a Ultracompact camera.

Before diving into a more detailed comparison, here is a simple introduction of how the SD1 Merrill matches up against the TX20 with regard to portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Sigma SD1 Merrill and Sony Cyber-shot DSC-TX20. The complete galleries are viewable at Sigma SD1 Merrill Gallery and Sony TX20 Gallery.

If you're looking to carry your camera often, you will want to consider its weight and measurements. The Sigma SD1 Merrill offers exterior measurements of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") having a weight of 790 grams (1.74 lbs) while the Sony TX20 has proportions of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") and a weight of 133 grams (0.29 lbs).

Take a look at the Sigma SD1 Merrill versus Sony TX20 in the latest Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary based on the lens you are working with at the time. Below is a front view measurements comparison of the SD1 Merrill vs the TX20.

Taking into account size and weight, the portability grade of the SD1 Merrill and TX20 is 57 and 96 respectively.

Oftentimes, it is very tough to picture the difference between sensor sizing only by looking at specifications. The graphic below will help give you a far better sense of the sensor measurements in the SD1 Merrill and TX20.

To sum up, both the cameras come with different megapixels and different sensor sizing. The SD1 Merrill due to its larger sensor is going to make getting shallow depth of field simpler and the Sony TX20 will give you more detail utilizing its extra 1 Megapixels. Greater resolution will help you crop images a good deal more aggressively.